leucism

play
noun leu·cism \ˈlü-ˌsi-zəm\

Definition of leucism

  1. :  an abnormal condition of reduced pigmentation affecting various animals (such as birds, mammals, and reptiles) that is marked by overall pale color or patches of reduced coloring and is caused by a genetic mutation which inhibits melanin and other pigments from being deposited in feathers, hair, or skin

leucistic

play \lü-ˈsi-stik\ adjective

Origin and Etymology of leucism

borrowed from German Leucismus, from Greek leukós “clear, white” + German -ismus -ism — more at 1light


First Known Use: 1878


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